Net primary (photosynthetic) productivity (NPP) is:
A) the carbon fixed by the leaves of the plant and not secondary photosynthesizing organs.
B) the amount of biomass that goes into the harvested part of the plant.
C) carbon fixed plus the amount given off through respiration.
D) carbon fixed minus the amount given off through respiration.
Question 2
When returned to the soil after harvest, plant parts such as corn stalks and grape and apple leaves provide ________ material but very little N, P, K for subsequent crops.
A) inorganic B) soluble C) organic D) nutrient-rich
Red algae and primary plastid of the supergroup Archaeplastida.
Primary pulse points of the body.
Primary visual processing areas (blue) in (a) human (lateral and mesial views) and (b) chimpanzee.
When checking a coil-on-plug (COP) assembly, check that the primary and secondary wiring looks ...
Lobes of the brain, with primary receiving and integrating centers of the human cerebral cortex.
Primary growth in a root